On Fri, 19 May 2023 21:38:06 +1000, Michael Ellerman wrote: > Commit 1e8fed873e74 ("powerpc: drop ranges for definition of > ARCH_FORCE_MAX_ORDER") removed the limits on the possible values for > ARCH_FORCE_MAX_ORDER. > > However removing the ranges entirely causes some common work flows to > break. For example building a defconfig (which uses 64K pages), changing > the page size to 4K, and rebuilding used to work, because > ARCH_FORCE_MAX_ORDER would be clamped to 12 by the ranges. > > [...] Applied to powerpc/fixes. [1/1] powerpc/mm: Reinstate ARCH_FORCE_MAX_ORDER ranges https://git.kernel.org/powerpc/c/358e526a1648cdd773ba169da5867874ae2408e3 cheers